An equilateral triangle, CDE, is folded as shown in the figure. Find
- ∠EDE
- ∠DEE.
(a)
∠DEE = 60° (Equilateral triangle CDE)
∠EDE
= 180° - 60° - 56° (Angles sum of triangle)
= 64°
(b)
∠DEE
= 180° - 56° - 56°
= 68° (Angles on a straight line)
Answer(s): (a) 64°; (b) 68°